The shooting death of a man in his driveway is connected to the unsolved 1992 murder of a Democratic campaign worker whose lifeless body was thrown into a nearby river on election night. The investigation centers on the relationship the dead woman had with a present-day congressman. Apparently, the victim in the current homicide probed into the earlier slaying and discovered damning new evidence. Elsewhere, Lilly spies Kite flirting with a new ADA and gets jealous.

The 1989 murder of a young mother is reopened when the woman's teenage son, who witnessed the crime when he was 3 years old, is brought in for petty theft and starts talking. The investigation reveals that the boy's slain mom may not have been who she claimed to be.